---
product_id: 432758
title: "4223-55ML Urethane Conformal Coating, 55 ml Bottle"
brand: "mg chemicals"
price: "€ 57.22"
currency: EUR
in_stock: true
reviews_count: 13
category: "Mg Chemicals"
url: https://www.desertcart.nl/products/432758-4223-55ml-urethane-conformal-coating-55-ml-bottle
store_origin: NL
region: Netherlands
---

# Moisture & corrosion protection Class F thermal rating (up to 155°C) Superior abrasion & chemical resistance 4223-55ML Urethane Conformal Coating, 55 ml Bottle

**Brand:** mg chemicals
**Price:** € 57.22
**Availability:** ✅ In Stock

## Summary

> 🛠️ Shield your circuits like a pro—because your tech deserves the best!

## Quick Answers

- **What is this?** 4223-55ML Urethane Conformal Coating, 55 ml Bottle by mg chemicals
- **How much does it cost?** € 57.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/432758-4223-55ml-urethane-conformal-coating-55-ml-bottle)

## Best For

- mg chemicals enthusiasts

## Why This Product

- Trusted mg chemicals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Thermal Toughness:** Withstands high temperatures up to 155°C, ensuring reliable performance even under thermal shock.
- • **UV Quality Assurance:** Innovative UV indicator reveals perfect coating coverage under black light—never miss a spot again.
- • **Unmatched Durability:** Protect your electronics with a coating that resists abrasion, chemicals, and moisture—built to last in extreme conditions.
- • **Precision Application:** Easy brush cap and spray thinning options let you tailor viscosity for flawless, gap-free coverage every time.
- • **Fast, Fungicidal Drying:** Touch dry in 10 minutes and fully handled in 30, speeding up your workflow without compromising protection.

## Overview

MG Chemicals 4223-55ML Urethane Conformal Coating delivers a robust protective layer for printed circuit boards and electronic components, defending against moisture, corrosion, and thermal shock. Featuring superior abrasion resistance, excellent adhesion, and a high temperature rating of 155°C, this clear amber coating dries fast and includes a UV indicator for quality inspection. Ideal for professionals seeking reliable, long-lasting protection in harsh environments.

## Description

Ideal for extreme chemical conditions. Urethane conformal coating is a durable finish product that provides a protective coating for printed circuit boards against moisture, corrosion, and thermal shock. It protects and insulates electrical and electronic components and assemblies, including generators, motors, transformers, relays, and solenoid coils. For spraying, liquid can be thinned using M.G. Thinner Cleaner. Thin up to one half part thinner to one part coating. Fungicidal, fast drying-units can be handled in 30 minutes, apply by dip, brush or spray, class F temperature rating (160 degree C / 320 degree F), excellent chemical resistance, oil and moisture resistant, excellent for coating circuit boards, UV indicator for quality inspection, superior abrasion resistance, excellent adhesion, good flexibility, can be thinned to desired viscosity using M.G. Chemicals Cat No. 435 Thinner Cleaner Solvent. RoHS Complient. Clear amber color. 0.94 g/ml Specific Gravity at 21 degree C (70 degree F), ASTM D-287. 44 - 55 sec. Viscosity, Dolph Viscosimeter at 30 degree C (86 degree F), 40 -50 sec. Viscosity, #1 Demmler Cup at 30 degree C (86 degree F). 1.0 - 1.5 mils Build Up, D.F.T., ASTM D-115. 10 min. at 20 degree C air drying time on strip, ASTM D-115-Set to touch. 1 hour federal specification, TT-P-1436-free of after tack. 155 degree C high temperature rating. 4.75 VOC Content, ASTM D 6053, lbs/gal. -40 degree C to 155 degree C (104 degree F to 311 degree F). RoHS compliant.

Review: Does the job, easy to use - Worked great to seal up a Norcold refrigerator board after I dried it out using a hair dryer. (Moisture gathers inside the sensing/sparking module, which causes the board not to sense a flame) I applied 3 coats with the included brush, which provided a 0.020" or thicker coating. The coating seems easy enough to remove (if required), I could scratch it off with some effort with my fingernail, but it would stay put under all imaginable conditions. I sealed all around my fuses as well, so it would need to be peeled off somewhat to replace the fuse (probably never). I saved 120 bucks on my fridge board, minus the cost of the coating and the hour to apply it, so I am a happy camper (literally). There is a strong solvent odor with this product. I opened the garage up, and blew a fan over my work area to keep from choking on the fumes. The UV dye is a cool addition, under a black light the coating turns an iridescent blue, which easily shows where any gaps are (I had none with 3 coats).
Review: Conforming (al) is easy - Happy to see MG has a new -and better cap to the bottle. Application (and mine is very different from the conventional use...was very easy. The material cured as needed..

## Features

- Ideal for extreme chemical conditions
- Urethane conformal coating is a durable finish product that provides a protective coating for printed circuit boards against moisture, corrosion, and thermal shock
- It protects and insulates electrical and electronic components and assemblies, including generators, motors, transformers, relays, and solenoid coils
- For spraying, liquid can be thinned using M.G. Thinner Cleaner; Comes with Easy Brush Cap applicator
- Thin up to one half part thinner to one part coating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008OA7AWE |
| Best Sellers Rank | #408,687 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #448 in Industrial Coatings #782 in Epoxy Adhesives |
| Brand | MG Chemicals |
| Color | Clear |
| Date First Available | June 23, 2012 |
| Global Trade Identification Number | 00779008422359 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 1.7 Fluid Ounces |
| Item Weight | 1.83 ounces |
| Item model number | 4223-55ML |
| Manufacturer | MG Chemicals |
| Material | Urethane |
| Package Information | Bottle |
| Special Feature | Superior Abrasion Resistance, Excellent Adhesion |
| Specific Uses For Product | Wall Repair |
| UPC | 779008422359 |
| Unit Count | 1.0 Count |
| Viscosity | 40-55 seconds (Doppler Viscosimeter and Demmler Cup at 30°C) |
| Viscosity Level | Medium to High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** MG Chemicals
- **Item Form:** Liquid
- **Material:** Urethane
- **Special Feature:** Superior Abrasion Resistance, Excellent Adhesion
- **Specific Uses For Product:** Wall Repair

## Images

![4223-55ML Urethane Conformal Coating, 55 ml Bottle - Image 1](https://m.media-amazon.com/images/I/71IaxpWCrFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the job, easy to use
*by N***R on May 19, 2016*

Worked great to seal up a Norcold refrigerator board after I dried it out using a hair dryer. (Moisture gathers inside the sensing/sparking module, which causes the board not to sense a flame) I applied 3 coats with the included brush, which provided a 0.020" or thicker coating. The coating seems easy enough to remove (if required), I could scratch it off with some effort with my fingernail, but it would stay put under all imaginable conditions. I sealed all around my fuses as well, so it would need to be peeled off somewhat to replace the fuse (probably never). I saved 120 bucks on my fridge board, minus the cost of the coating and the hour to apply it, so I am a happy camper (literally). There is a strong solvent odor with this product. I opened the garage up, and blew a fan over my work area to keep from choking on the fumes. The UV dye is a cool addition, under a black light the coating turns an iridescent blue, which easily shows where any gaps are (I had none with 3 coats).

### ⭐⭐⭐⭐ Conforming (al) is easy
*by N***L on April 10, 2022*

Happy to see MG has a new -and better cap to the bottle. Application (and mine is very different from the conventional use...was very easy. The material cured as needed..

### ⭐⭐⭐⭐⭐ use on replacement connections for cord plugs and receptacles.
*by J***Y on March 1, 2020*

When replacing cord plugs or receptacles, after screw securing of wires, I coat screws and work conformal coating in and around the end of wires. For extension cords used in occasional (outdoor) high moisture environment, corrosion of connection is reduced or eliminated. It also makes a more mechanically secure connection. I make sure some of sealant is goes under and around the end of the wire insulation to prevent moisture migration between wire strands back to the wire clamp connection. I usually place some under the exterior retaining clamp of plug/receptacle to help keep wire from sliding back through the clamp and putting all the connection stress on the internal connection.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/432758-4223-55ml-urethane-conformal-coating-55-ml-bottle](https://www.desertcart.nl/products/432758-4223-55ml-urethane-conformal-coating-55-ml-bottle)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*